In the Irish industrial landscape—stretching from the pharmaceutical hubs of Cork to the manufacturing sectors in Dublin and the Midlands—chemical tank cleaning is a high-stakes operational necessity. When dealing with hazardous substances like caustics, acids, or Volatile Organic Compounds (VOCs), the primary challenge is not just the removal of the bulk product, but the sophisticated management of airborne risks.
At CD Environmental, our approach is rooted in the Safety First principle. We advocate for a shift away from traditional atmospheric venting towards an engineered, closed-loop solution using our Trailer-Mounted Multi-Phase Wet Scrubber.
Managing the “Invisible” Risk: Vapour and Emission Control
One of the most significant hazards during the decommissioning or stripping of a chemical vessel is the transition of liquid residues into airborne contaminants. In an Irish regulatory context, adherence to Environmental Protection Agency (EPA) requirements and Industrial Emissions (IE) Licensing is non-negotiable.
Uncontrolled “gassing off” during a tank clean can lead to significant environmental breaches and acute health risks for onsite personnel. Our Mobile Vapour Abatement System (MVAS) is specifically engineered to mitigate this. Housed within a bespoke mobile unit, the system acts as a portable gas-phase filtration plant connected directly to the vacuum pump exhaust of a pressure/vacuum truck.
High-Integrity Exhaust Filtration: Capturing Every Micro-Particle
The core of our “Zero Emission” philosophy lies in the precision of the exhaust management system. It is not enough to simply move the air; we must ensure that nothing goes airborne.
Our system utilises an advanced High-Efficiency Particulate and Vapour Capture process:
- Active Process Air Extraction: We don’t wait for vapours to escape. Our scrubber is plumbed directly to the system, taking air from the process in real-time. By running this process air through the scrubbers, we ensure that there are no airborne particles released into the facility or the local environment.
- Microfibre and Particulate Sequestration: During the cleaning of complex systems, solid-state contaminants—specifically microfibres—can become suspended. Our system is designed to catch these physical particles while the cleaning is in progress, acting as a mechanical barrier that traditional venting methods simply cannot match.
- Total Headspace Extraction: The system creates a continuous negative pressure environment. As the vacuum truck operates, 100% of the displaced air and “flash” vapours are pulled directly into the abatement stream for treatment.
The Engineering Behind the Multi-Phase Scrubbing Module
The operation of our Portable Emission Control Unit is based on the selective purification of gases through sequential washing stages. Depending on the chemical properties of the vapours and the concentration of pollutants, we utilise a high-efficiency impingement process to reduce emissions to the absolute minimum.
- Closed-Loop Containment: The scrubbing module is plumbed directly to the vessel’s headspace, ensuring zero atmospheric venting.
- Neutralisation of Volatile Compounds: By utilising different washing phases in series, we can charge the reaction chambers with specific reagents. Whether stripping heavy industrial oils or neutralising corrosive caustics, the hazardous elements are captured and stabilised within the scrubbing media.
- Engineering Out the Risk: This mechanical control measure is the most effective way to satisfy the “Hierarchy of Controls,” replacing a reliance on PPE with a robust engineered barrier.
Compliance: Protecting the Irish Water Table
In Ireland, the protection of groundwater and municipal drainage systems is a priority for every facility manager. A critical component of our process is the absolute prevention of uncontrolled discharge to drains.
By utilising a Self-Contained Vapour Recovery Unit, all effluents and wash waters are internally captured. We manage the entire lifecycle of the waste—from the initial chemical strip to the final safe disposal at an authorised facility—providing full traceability for your environmental audits and Annual Environmental Reports (AER).
A Culture of Operational Excellence
The high-risk nature of chemical cleaning—from emergency spill response to scheduled refinery shutdowns—demands more than just equipment; it requires a rigorous focus on risk reduction. By deploying an Advanced Vapour Abatement System, you are choosing a process that prioritises the health of your employees and the integrity of the local Irish environment.
At CD Environmental, we provide a seamless, compliant, and—above all—safe solution to the complex challenge of industrial chemical management.